I make it a = -4/10 and I've checked it back in the cubics.

Maybe you should post your expressions for r and s.

Bob

]]>I am sorry for that]]>

put x = -1

Do a similar thing for the other and then substitute into the equation for r and s to get a

Bob

]]>Then find the value of a

P.S: Sorry it should have been x + 1

Is the answer 2 or something else?

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